package org.mdrtwell.swing.treetable;

/*
 * %W% %E%
 *
 * Copyright 1997, 1998 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 * 
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer. 
 *   
 * - Redistribution in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials
 *   provided with the distribution. 
 *   
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.  
 * 
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY
 * DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR
 * RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR
 * ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE 
 * FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT,   
 * SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER  
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF 
 * THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS 
 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or
 * maintenance of any nuclear facility.
 */
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;

import javax.swing.JTable;
import javax.swing.JTree;
import javax.swing.table.TableCellEditor;
import javax.swing.table.TableCellRenderer;
import javax.swing.tree.DefaultTreeSelectionModel;
import javax.swing.tree.TreeModel;

public class JTreeTable extends JTable {
	protected TreeTableCellRenderer	tree;

	public JTreeTable(TreeTableModel treeTableModel) {
		super();
		// Create the tree. It will be used as a renderer and editor.
		tree = new TreeTableCellRenderer(treeTableModel);
		// Install a tableModel representing the visible rows in the tree.
		super.setModel(new TreeTableModelAdapter(treeTableModel, tree));
		// Force the JTable and JTree to share their row selection models.
		tree.setSelectionModel(new DefaultTreeSelectionModel() {
			// Extend the implementation of the constructor, as if:
			/* public this() */{
				setSelectionModel(listSelectionModel);
			}
		});
		// Make the tree and table row heights the same.
		tree.setRowHeight(getRowHeight());
		// Install the tree editor renderer and editor.
		setDefaultRenderer(TreeTableModel.class, tree);
		setDefaultEditor(TreeTableModel.class, new TreeTableCellEditor());
		setShowGrid(false);
		setIntercellSpacing(new Dimension(0, 0));
	}

	/*
	 * Workaround for BasicTableUI anomaly. Make sure the UI never tries to
	 * paint the editor. The UI currently uses different techniques to paint the
	 * renderers and editors and overriding setBounds() below is not the right
	 * thing to do for an editor. Returning -1 for the editing row in this case,
	 * ensures the editor is never painted.
	 */
	public int getEditingRow() {
		return (getColumnClass(editingColumn) == TreeTableModel.class) ? -1 : editingRow;
	}

	/**
	 * The renderer used to display the tree nodes, a JTree.
	 */
	public class TreeTableCellRenderer extends JTree implements TableCellRenderer {
		protected int	visibleRow;

		public TreeTableCellRenderer(TreeModel model) {
			super(model);
		}

		public void setBounds(int x, int y, int w, int h) {
			super.setBounds(x, 0, w, JTreeTable.this.getHeight());
		}

		public void paint(Graphics g) {
			g.translate(0, -visibleRow * getRowHeight());
			super.paint(g);
		}

		public Component getTableCellRendererComponent(JTable table,
				Object value,
				boolean isSelected,
				boolean hasFocus,
				int row,
				int column) {
			if (isSelected)
				setBackground(table.getSelectionBackground());
			else
				setBackground(table.getBackground());
			visibleRow = row;
			return this;
		}
	}

	/**
	 * The editor used to interact with tree nodes, a JTree.
	 */
	public class TreeTableCellEditor extends AbstractCellEditor implements TableCellEditor {
		public Component getTableCellEditorComponent(JTable table,
				Object value,
				boolean isSelected,
				int r,
				int c) {
			return tree;
		}
	}
}
